Home / 3,169.40-4,754.16-1,089.38

Finding the Fourth Proportional to 3,169.40, 4,754.16 and 1,089.38

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Solution

The fourth proportional to 3,169.40, 4,754.16 and 1,089.38 is: 1,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.40 : 4,754.16 = 1,089.38 : x
  2. Step 2: Convert to fraction form
    3,169.40/4,754.16 = 1,089.38/x
  3. Step 3: Cross multiply
    3,169.40x = 4,754.16 × 1,089.38
  4. Step 4: Simplify right side
    3,169.40x = 5,179,098.71
  5. Step 5: Solve for x
    x = 5,179,098.71/3,169.40
  6. Step 6: Final answer
    x = 1,634.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.